From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: regex.c simplification Date: Thu, 19 Jul 2018 20:33:36 -0400 Message-ID: References: <83fu1mzq09.fsf@gnu.org> <30e30c9d-1e0d-ea7d-2ef5-ae8622875449@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1532046709 13631 195.159.176.226 (20 Jul 2018 00:31:49 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 20 Jul 2018 00:31:49 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jul 20 02:31:45 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fgJKh-0003Q3-Ts for ged-emacs-devel@m.gmane.org; Fri, 20 Jul 2018 02:31:44 +0200 Original-Received: from localhost ([::1]:45892 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgJMo-0004Ii-9z for ged-emacs-devel@m.gmane.org; Thu, 19 Jul 2018 20:33:54 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59671) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgJMh-0004Ib-S2 for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:33:48 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fgJMe-0003py-PB for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:33:47 -0400 Original-Received: from [195.159.176.226] (port=50189 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fgJMe-0003oI-Gp for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:33:44 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1fgJKV-0003CT-5w for emacs-devel@gnu.org; Fri, 20 Jul 2018 02:31:31 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 15 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:BcUTQcobxgDlHS4N2QMTbe8g+Y4= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:227566 Archived-At: >>> If we wanted to make the fork more official, we could simplify src/regex.c >>> to not worry about lib-src, by having etags use Glibc/Gnulib regex rather >>> than Emacs regex. >> I would welcome such a change. > I started the ball rolling by writing a patch that changes etags to use > Glibc regex, falling back on a Gnulib copy if Glibc is not available; see > Bug#32194. We can follow up later by simplifying the Emacs-only regex code > to assume Emacs. I wonder: does etags use regexps internally, or only to handle user-provided "--regex" arguments? More specifically, does it come with its own set of hardcoded regexps? Stefan